Home / 354,989,032.91-489,903,789.08-198,359,942.03

Finding the Fourth Proportional to 354,989,032.91, 489,903,789.08 and 198,359,942.03

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Solution

The fourth proportional to 354,989,032.91, 489,903,789.08 and 198,359,942.03 is: 273,747,294.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,989,032.91 : 489,903,789.08 = 198,359,942.03 : x
  2. Step 2: Convert to fraction form
    354,989,032.91/489,903,789.08 = 198,359,942.03/x
  3. Step 3: Cross multiply
    354,989,032.91x = 489,903,789.08 × 198,359,942.03
  4. Step 4: Simplify right side
    354,989,032.91x = 97,177,287,200,232,528
  5. Step 5: Solve for x
    x = 97,177,287,200,232,528/354,989,032.91
  6. Step 6: Final answer
    x = 273,747,294.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.